<ul class="list-group">	<li class="list-group-item {x2;if:$method == 'index'} active{x2;endif}">		{x2;if:$method == 'index'}首页		{x2;else}		<a href="index.php?{x2;$_app}-master">首页</a>		{x2;endif}	</li>	<li class="list-group-item {x2;if:$method == 'ask'}active{x2;endif}">        {x2;if:$method == 'ask'}问答管理        {x2;else}		<a href="index.php?{x2;$_app}-master-ask">问答管理</a>        {x2;endif}	</li></ul>